baber/WOPTO huggingface dataset:
Patent GB-1093775-A (GB)
Title: Method and apparatus for altering the transmittance of a semiconductor
IPC: G02F1/17
Filed: 1965-08-04
Abstract: 1,093,775. Modulating light. INTERNATIONAL BUSINESS MACHINES CORPORATION. Aug. 4, 1965 [Aug. 14, 1964], No. 33291/65. Heading H4F. To alter the transmittance of electromagnetic radiation propagating in a preferred direction through a semi-conductor, the radiation having longer wavelength than an energy gap in the semi-conductor, free charge carriers in the semi-conductor are established in (i.e. redistributed into) selected ones of several energy valleys, i.e. the range of energies near minima which are in a particular volume in k-space, by applying in different preferred directions a uniaxial mechanical stress and/or a linearly polarized microwave radiation, i.e. a time varying electric field. The electromagnetic radiation is preferably in the infra-red region. The constant energy surfaces near minima in the range of energies are usually ellipsoids in k-space and characterize the properties of the carriers near the valleys, Figs. 3 and 4 (not shown), illustrate the constant energy ellipsoid surfaces for n-type silicon and n-type germanium respectively. Fig. 1 shows two embodiments of the invention. In one embodiment, polarization of incident non-polarized infra-red radiation 11 applied to monocrystalline semi-conductor solid 12 in the Z-direction is obtained through application of uniaxial mechanical stress #S in the y-direction to the semi-conductor solid; and in the other embodiment amplitude modulation of incident linearly polarized infra-red radiation 18 applied to monocrystalline semiconductor solid 22 in the Z-direction is obtained by application of linearly polarized microwave radiation 24 in the x-direction with its electric field vector #E in the y-direction. Linearly polarized amplitude (microwave) modulated infra-red radiation 26 is thus transmitted from solid 22 in the z-direction. The transmittance of electromagnetic radiation propagating in a semi-conductor is thus altered through its polarization and through its amplitude. The Specification explains how the stress and electric field in the semi-conductor solid causes an anisotropic distribution of electrons and thus a change in the effective electron mass upon which the absorption constant for the semiconductor depends. In a strained germanium crystal only one direction of polarization is not substantially absorbed. For microwave modulation the free charge carries in the semiconductor are anisotropically heated and thus the semi-conductor is preferably maintained at a low temperature or pulse operation is utilized to prevent heating of the semi-conductor. In a third embodiment, Fig. 2 (not shown), modulated linearly polarized infra-red radiation is obtained from incident non-polarized infra-red radiation applied to a semi-conductor solid by applying both uniaxial stress #S and microwave radiation electric field #E to the semi-conductor solid in different preferred directions.
Patent GB-212304-A (GB)
Title: Improvements in and relating to pumps having an adjustable delivery, particularly adapted for feeding internal combustion engines with fuel
IPC: F02M59/46
Filed: 1922-12-06
Abstract: 212,304. Bellem, L. H. L. Dec. 6, 1922. Eccentric-actuated pumps; rods and rod guides; stroke, varying ; singleacting piston pumps ; materials, special ; priming ; strainers; valves, arrangement of; valves, facilitating removal of.-In a pump of the kind described in Specification 118,081, the plunger 5 is driven by an eccentric 12, the driving shaft 11, eccentric, and eccentric strap being made of material which may be lubricated by the liquid pumped. In one form for pumping petrol the shaft is of hardened steel revolving in cast-iron bushes, and the eccentric and eccentric strap are of cast iron. The delivery valve comprises a ported ball-and-socket member 28 of hardened steel arranged in a ported cage 30 of cast iron, on the upper face of which the valve 34 in the form of a leather washer set in a metal washer 35 is pressed by a steel ball 36 and spring 37. A cap 33 screwing on to the member 30 holds the parts together in a housing 38 closed by a ring 40. By removing the ring, the cap 33 carrying all the valve parts may be removed. Fuel enters the pump chamber 2 through a pipe 44, strainer 46 and port 3. At starting, the delivery pipe is primed with fuel admitted from a pipe 49 through a revoluble member 50 having a longitudinal groove 51 which may be brought into register with a port 47 communicating with the delivery chamber of the valve. The driving shaft 11 and the member 51 are packed by means of a shoulder pressed onto a packing washer 54 by a spring 53.
Patent GB-989686-A (GB)
Title: Method of extracting and recovering minerals and other soil matter
IPC: E21C41/16
Filed: 1962-08-31
Abstract: 989,686. Mineral mining. INGERSOLLRAND CO. Aug. 31, 1962 [Sept. 7, 1961; Aug. 24, 1962], No. 33478/62. Heading E1F. To mine a vein 14 of mineral a shaft 12 is sunk to the level of the vein, a cross drift 16, 20 excavated to the vein, drifts 26 at intervals transverse to the cross drift are excavated, and a series of overlapping parallel holes of diameter slightly in excess of the vein thickness and crosswise thereof are drilled between an adjacent pair of transverse drifts and the drillings from said holes are collected. The holes are preferably drilled by rotary, percussive core drills.
Patent GB-1285555-A (GB)
Title: Improvements in or relating to gramophone pickup cartridges
Inventor: LLOYD ERIC
IPC: G11B3/54
Filed: 1968-07-12
Abstract: 1285555 Pickup housings PLESSEY CO Ltd 13 Oct 1969 [12 July 1968] 33509/68 Heading H4J A snap-action two-part shell for the transducer element 6 of a gramophone pick-up cartridge has one part 2 provided with projecting portions 15, 21 at each end. One end of the other part 1 has a shoulder 18a adapted to be engaged by a tab 11 of the portion 15. When engaged, pivotal movement of part 2 relative to part 1 permits engagement of a locking portion 22 of the part 2 with a shoulder 26 of end part 25. The shoulder 26 may be inclined (28a) to cooperate with a corresponding surface 22b. The two parts, when closed, abut along their lengths at surfaces 3, 3a and 4, 4a. One, preferably both, parts 1, 2 are of resilient plastics material such as polypropylene or nylon. The two parts 1, 2 define a cavity for two piezo-electric elements 6 clamped at one end and engaging a coupler 7 near the other end. The coupler 7 engages a stylus arm 8 held in a recess 9. A handle 10 permits either of two styli 11, 12 to be in operative position.
Patent GB-855031-A (GB)
Title: Improvements relating to kettles or the like
IPC: A47J27/21
Filed: 1958-10-21
Abstract: 855,031. Weighing apparatus. WOLVEN, A. W. Oct. 21, 1958, No. 33523/58. Class 143 [Also in Group XVII] A spring balance for gauging the contents of a kettle or the like comprises a guide 4, a telescopic handle 5 by which the kettle is carried, and an indicator 12 supported between legs 6, 7 of the handle, the handle 5 having a pin 10 carrying a spring 8 the lower end of which is secured to a pin 9 fixed to the guide 4. The guide 4 may be connected to a fixed kettle handle, Fig. 6 (not shown).
Patent GB-408385-A (GB)
Title: Improved apparatus for measuring and delivering quantities of tablets, or like small articles from a continuous supply
IPC: A47F1/035
Filed: 1932-11-28
Abstract: 408,385. Delivering measured quantities of tablets and like small articles. BUTLER, SIR R. R. F., Wonham Manor, Betchworth, Surrey. Nov. 28, 1932, No. 33636. [Class 106 (v).] In apparatus for delivering measured quantities of tablets and like small articles comprising a hopper 1 having in its outlet duct 2 a measuring space defined and controlled by reciprocable slides 3, 4 arranged one above and in advance of the other, a gap 11 is left between the wall of the duct and the forward edge 3b of the upper slide when in the closed position, the gap being of such a width as to prevent the jamming of the tablets between the edge of the slide and the wall. A similar gap is preferably left between the duct wall and the edge 4b of the lower slide. In order to prevent a free passage of the tablets the duct wall is provided with a guard 12 overhanging but spaced above the gap 11.
Patent GB-789801-A (GB)
Title: Improvements in or relating to fibre accretion moulding apparatus
IPC: D21J3/00
Filed: 1953-12-04
Abstract: 789,801. Moulding pulp. POLLAK, R. Feb. 25, 1955 [Dec. 4, 1953], No. 33745/53. Class 87(2). Pulp is poured into a receptacle 7, and a tool 11 lowered onto the pulp. Suction is applied to a mould 4 and compressed air applied above the pulp through a pipe 16, to remove the liquid from the pulp. The tool 11 may also be forced down to assist in expelling the liquid. When the liquid is expelled, the tool 11 compresses the accreted fibres. Suction is then applied to the tool 11 and compressed air to the mould 4 to transfer the moulded fibres to the tool 11, which is then raised. A slide 3 is moved laterally by a piston 31 to bring a moulding tool 22 (similar to the mould 4) from a densifying station to a position beneath the tool 11, which is then lowered and the moulded fibres transferred to the tool 22. This lateral movement of the slide 3 also moves the mould 4 to a washing device 27, and moves a delivery mould 26 beneath the tool 23 of the densifying station to receive the next moulded article. The slide is then returned to its original position, and the tool 23 lowered to press the accreted fibres, while the mould 4 is returned for the next layer of fibres to be accreted, and the delivery mould 26 removes the previously pressed layer for removal by compressed air. Where, as is shown, the mould is shaped to form a combined sole and heel portion of a shoe, the heel portion may be pressed by an expansible bag instead of a rigid member. The valves controlling the suction, the supply of compressed air and the hydraulically operated piston are operated by an electrically controlled master cam cylinder (see Fig. 6, not shown). The tool 11 may have means for resiliently supporting part of its weight to allow it to float on the pulp. According to the Provisional Specification the top tools may slide laterally instead of the bottom tools.
Patent GB-1386400-A (GB)
Title: Acceleration indicator for sports equipment
IPC: A63B69/36
Filed: 1971-07-19
Abstract: 1386400 Acceleration indicator for sports equipment D L LINNING 31 May 1972 [19 July 1971] 33789/71 Heading A6D [Also in Division G1] An indicator having means to attach it to the shaft of shafted sports equipment and which when so attached will indicate to the user of the equipment the attainment of a predetermined threshold of acceleration of the equipment transverse to the line of the shaft, comprises a member released from a stable condition by attainment of said threshold acceleration to generate a sound by impact. As shown the indicator has a housing 10 provided with clips 20 for attaching it to the shaft of e.g. a golf club. Within the housing 10 there is a hammer 14 the head 15 of which engages with an anvil 11 under the action of spring 19. In action the head 15 slips from the anvil 11 when the predetermined transverse threshold acceleration is reached in a 'swing' of the golf club and the spring 19 forces the head into contact with the bottom of housing 10 to produce the sound by impact therewith. The loading of the spring can be adjusted by adjusting nut 13 screwed into the upper end of the housing 10 and the device can be re-set by means of the tail end 16 of the hammer. In a second embodiment (Fig. 2, not shown) the housing is formed as a magnet and the hammer is replaced by a ball held in the anvil by magnetic force.
Patent GB-204973-A (GB)
Title: Process of making bifocal lenses
IPC: G02C7/06
Filed: 1922-12-11
Abstract: 204,973. Fennell, H. Dec. 11, 1922. Forming lenses.-Bifocal lenses are made by fusing into a recess 2 in a block of glass 1 a button composed of superposed integral discs 4, 5 or laminµ of glass of different indices of refraction. The discs may be fused together either before or after convex surfaces have been formed on them.
Patent GB-1090554-A (GB)
Title: Improvements in or relating to anchor elements for use in brickwork or like media
IPC: E04B1/41
Filed: 1965-08-06
Abstract: 1,090,554. Anchoring nuts. E. CHEETHAM. June 28, 1966 [Aug. 6, 1965], No. 33825/65. Heading F2H.  An anchor nut for embedding in concrete comprises a bore, screw-threaded over an intermediate portion and blind at one end, and having at least one flange 2 which is square in plan and extends towards the open end of the bore. In use the nut is attached to a bar and inserted into the concrete whilst it is wet, the bar being removed before the concrete has hardened to leave an access hole for a bolt.
Patent GB-819971-A (GB)
Title: Improvements in compression tester for resilient materials
IPC: G01N3/40
Filed: 1956-11-07
Abstract: 819,971. Testing physical qualities of materials. WOHLER, L. A. Nov. 7, 1956 [Nov. 8, 1955], No. 33980/56. Class 106 (2). A device for measuring the compression characteristics of an article 11 of compressible material comprises an elongated member 26 adapted to extend through the material, a graduated scale 27 fixed to member 26, a flat plate 14 slidable along the member and means for indicating the relative position of the plate 14 with respect to the member 26. The member 26 slides in a tube 19, connected to the plate-14 and carries two scales 27, 28, one of which is marked in inch graduations to show the height of the upper surface of the material, while the other has the same graduations spaced at 3/4-inch intervals. In use, the article is pierced by the member 19 and the rod 26 allowed to reach the supporting surface. The height of the upper surface is then read off from the scale 27, by the position of the upper end of member 19, i.e. as shown in Fig. 1, it is six inches. Weights are then added to the plate 14 until the upper end of member 19 is level with the corresponding graduation on scale 28. The article has then been compressed by 25 per cent and the weight required to do this is a measure of the compressibility of the article.
Patent GB-890428-A (GB)
Title: Improvement in air filters
Inventor: ROBB JAMES
IPC: B01D35/14
Filed: 1959-10-07
Abstract: 890,428. Filters. BRITISH OXYGEN CO. Ltd. Oct. 7, 1960 [Oct. 7, 1959], No. 34054/59. Class 46. Also in Group XXVIII] A filter for the separation of solid carbon dioxide particles from a mixture of gaseous and liquid air comprises a filter candle 15, Fig. 1, suspended from a plate 14 within a cylindrical easing 10 having a tangential inlet 18 and an outlet 21 extending from within and near the base of the candle which is surrounded by a sleeve 16 having an open bottom through which liquid air passes to the lower position of the candle 15 and upper ports 17 through which gaseous air gains access to said candle. The latter comprises a hollow cylinder 23, Fig. 3, of sintered bronze perforated metal or woven or knitted metal gauze wound with several layers 24 of glass twill separated by glass fibre 25 surrounded by a metal gauze 26. Ducts 19, 22 connect upper and lower portions of the filter casing to safety valves and duct 22 may also serve to back-flush the filter candle to effect cleaning thereof.
Patent GB-1197450-A (GB)
Title: Method for the Treatment of Lignocellulosic Materials
IPC: D21D1/30
Filed: 1967-07-25
Abstract: 1,197,450. Paper pulp. ANGLO PAPER PRODUCTS Ltd. 25 July, 1967 [1 Aug., 1966] No. 34072/67. Headings D2A and D2W. [Also in Division B2] Lignocellulosic material is defined by feeding it into a closed chamber and abrading it by means of a disc refiner under a power input of at least thirty horsepower-days per ton in the presence of water and under a pressure of 20 to 40 psig. The atmosphere in the chamber is intert to the material, and may be of steam or air. chemicals may also be present, e.g. one or more of sodium hydroxide, sodium carbonate, sodium sulphate, sodium sulphite, sodium bisulphite, sodium hydrosulphite, tetrasodium pyrophosphate sodium hexametaphosphate, sodium tripolyphosphate, sodium chloride, calcium chloride, magnesium chloride, zinc hydrosulphite and the pentasodium salt of diethylene-triaminepentacetic acid.
Patent GB-816852-A (GB)
Title: Improvements in apparatus for cleansing and sterilizing static and other tanks
Inventor: MOSS ERIC TOM
IPC: B08B9/093
Filed: 1955-11-28
Abstract: 816,852. Cleaning tanks. DAIRY SUPPLY CO. Ltd. Nov. 28, 1955, No. 34078/55. Class 21. An apparatus for cleaning and sterilizing static and other tanks comprises rigid frame elements 3, 4, 5 secured to the tank 1 for supporting a motor 8 and gear elements 7 above the tank, a vertically disposed hollow shaft 9 driven by said gear elements, one or more spray devices 20 coupled to the shaft 9 and an upper gland unit 10 for connection with a hose or pipe 13. The one or more spray devices 20 may be on a detachable extension 9x of the shaft 9 to facilitate cleaning. An agitator may be mounted on a lowermost extension of the shaft 9. Specification 816,851 [Group XXIII] is referred to.
Patent GB-1272263-A (GB)
Title: Improvements in and relating to conveyor systems
Inventor: PARRY DOUGLAS JOHN
IPC: B65G35/06
Filed: 1969-07-08
Abstract: 1,272,263. Conveyer systems. FOUNDRY MANAGEMENT & DESIGN CO. Ltd. 15 Sept., 1970 [8 July, 1969], No. 34284/69. Heading B7L. In a conveyer system comprising a trackway, having rails 1, and a movable carrier 4 adapted to move longitudinally along the rails by means of linear motors 5, the carrier 4 is mounted on swivel castor wheels 3, each having cylindrical support surfaces 3<SP>11</SP> and a protruding central flange 3<SP>1</SP>, the flange 3<SP>1</SP> projecting into a space in the rail 1 defined by two longitudinally extending support members while the weight of the carrier is supported by the surfaces 311 which rest upon the support members of the rail, the arrangement being such that at a transfer area S the castor wheels have only point contact through the flanges 3<SP>1</SP> with the rails at transfer points 6, 7, 8, 9 (Figs. 4, 5, 6) and the carrier may thus be moved off along the rails in a direction at right angles to its original direction of movement. Also described, Figs. 10, 11, 12, 13, 14, 15 (not shown), are embodiments in which the carrier may be moved off at an oblique angle to its original direction of movement. Fig. 17 (not shown) shows an arrangement using an additional circulation rail 29 by means of which the carrier may be moved bodily through 90 degrees. Figs. 20, 21 (not shown) show embodiments involving the use of turntables.
Patent GB-1382239-A (GB)
Title: Printing apparatus
IPC: B41F1/44
Filed: 1971-07-22
Abstract: 1382239 Printing apparatus L A FISH 23 Oct 1972 [22 July 1971] 34417/71 Heading B6C A printing apparatus has a sheet 23 to be printed held under tension by spaced apart vacuum grippers 28. The apparatus is particularly useful for printing on packages having polyethylene wrappings. The printing apparatus comprises an endless belt inker 10 fed from a reservoir 11, a printing plate 7 on a yoke 2 swingable into the chain dotted position for printing by a link mechanism operated by piston and cylinder 14, 13. The gripper may have vacuum orifice 28 outwardly of a manifold 26 as in Fig. 3 or be on manifolds which are movable in translation or rotation to tension the sheet. An alternative form, Fig. 4, has wide vacuum ducts 43 connected to grooves 44 which first grip the sheet and then it is tensioned by being drawn into deep grooves 46 evacuated through narrow ducts 45.
Patent GB-898958-A (GB)
Title: Improvements in the dyeing of cellulose fibres
Inventor: BRAUN WILLY
IPC: D06P1/56
Filed: 1958-10-28
Abstract: Cellulose fibres are dyed or printed and, if desired, simultaneously given a resistance to creasing or shrinking or given an embossed or chintz effect, by applying a dyebath or printing paste containing a dyestuff having at least one methylol group or at least one reactive hydrogen atom capable of reacting with formaldehyde to form a methylol group, but other than an aromatically bound amino group capable of reacting with formaldehyde, at least one hardenable aminoplast-forming substance containing one or more free methylol groups or their methyl ethers or the precursor of such a substance and, when a dyestuff containing a reactive hydrogen atom or a precursor is employed, formaldehyde or a compound yielding formaldehyde such as paraformaldehyde or hexamethylene tetramine, and finally heating in the presence of an acid and/or an acid-reacting substance, if desired, followed by a mechanical treatment such as an embossing, calendering or frictioning treatment.  Specified dyestuffs are azo and anthraquinone dyes which may be soluble or used in the dispersed condition.  Specified aminoplastforming substances are dimethylol urea, dimethyl-dimethylol urea, dimethyloldicyandiamide, methylolthiourea, dimethylolguanidine, trimethylolmelamine, diphenyldimethylolurea and the methylol derivatives of mono- and diureines, carboxylic acid amides, urethanes, polyurethanes, 1-keto-trimethylene-triamine, lactams, polyamides and ethylene ureas. The heat treatment is preferably effected at 50 DEG C.-200 DEG C. The dye liquor may also contain hydrophobing, softening, levelling, wetting and dressing agents, and solutions or dispersions of plastics, epoxy resins or polyglycolacetals, and many examples of these substances are given.  Numerous examples of dyeing are also given.  The process of Specification 875,712 is disclaimed. Specification 842,802 also is referred to.
Patent GB-813111-A (GB)
Title: Improvements in or relating to parquet floor blocks
IPC: B05C9/14
Filed: 1956-01-06
Abstract: <PICT:0813111/III/1> <PICT:0813111/III/2> A parquet floor block is provided on its underside with a tar-like covering of dove-tailed or like cross - section forming projections on said underside.  The underside of the block may be grooved so as to improve the adhesion of the tar-like material, the grooves being of triangular (Fig. 1), rectangular (Fig. 2), half round or dove-tailed cross-section.
Patent GB-914419-A (GB)
Title: Antibacterial agents
IPC: C07D499/74
Filed: 1961-09-27
Abstract: Relates to penicillins of the formula <FORM:0914419/IV (b)/1> and non-toxic salts thereof, wherein R1 is alkyl or alkenyl, aralkyl, cyclohexyl or straightchain alkyl terminated by a heterocyclic ring system when R2 is hydrogen, or each of R1 and R2 may be alkyl, alkenyl or aryl, or R1 and R2 together with the nitrogen atom to which they are attached form a heterocyclic ring system, which may be substituted with lower alkyl groups and may have a benzene ring fused thereto, such as 6-(N-allyl-N1-phthalamido)-, 6-(N-benzyl-N1-phthalamido)-, 6-(N-propyl-N1-phthalamido)-, 6-(N-furfuryl-N1 - phthalamido)-, 6-(N,N-diallyl-N1-phthalamido)-penicillanic acid.  The compounds may be prepared by reacting 6-aminopenicillanic acid, preferably in the form of a neutral salt such as the sodium salt or the triethylamine salt, with an acid chloride of the formula <FORM:0914419/IV (b)/2> or with its functional equivalent as an acylating agent.  N-allyl phthalamic acid is prepared by reacting phthalic anhydride and allylamine in benzene.  N-benzylphthalamic acid and N-n-propylphthalamic acid may be prepared by a similar method with acetone as solvent.
Patent GB-498630-A (GB)
Title: A new or improved method and/or apparatus for use in measuring specifiic gravity
IPC: G01N9/28
Filed: 1937-12-14
Abstract: 498,630. Fluid pressure servomotorcontrol systems. KENT, Ltd., G., and RATCLIFF, J. H. R. Dec. 14, 1937, No. 34621. Drawings to Specification. [Class 135] [Also in Group XX] The densities of two liquids are compared by causing gas to pass simultaneously through predetermined heads of both liquids and measuring the difference between the resistances set up by the two liquids to the gas flow, e.g. by means of a differential pressure gauge. The liquids may be passed continuously through tubular containers. In order to maintain constant the density of the liquid being tested the pressure gauge may regulate the supply of pressure air to a diaphragm type control valve.